Side-story novel to the Index/Railgun. Misaka Mikoto is invited to Russia to demonstrate the abilities of Level Five in a shopping mall. There she meets a girl named Lessar.

Summoning ceremonies can freely call forth even "those which lurk in the depths beyond the gods". One boy has top-level abilities even among the cutting-edge summoners who can use those ceremonies. He is Alice (with) Rabbit aka Shiroyama Kyousuke. But this strongest boy summoner has a single fatal weakness. Certain "cursed words" spoken by girls: "Help me." When Kyousuke hears those words from Meinokawa Higan, a girl brought to the verge of death, he throws himself into a city where three great summoner forces clash! (Source: Baka-Tsuki)

A spin-off of the various works of Kamachi Kazuma. One day, Kamijou Touma (A Certain Magical Index) faced yet another misfortune. His toilet was broken and spraying water everywhere. As he was lamenting his misfortune, suddenly he appeared in a strange place along with Index and Misaka. Soon enough, more strange people begin appearing... Includes: [Toaru Majutsu no Kinsho Mokuroku (Novel)](https://www.mangaupdates.com/series.html?id=31840) [Heavy Object (Novel)](https://www.mangaupdates.com/series.html?id=72061) [Interibirejji no Zashiki Warashi (Novel)](https://www.mangaupdates.com/series.html?id=80480) [Waltraute-san no Konkatsu Jijou (Novel)](https://www.mangaupdates.com/series.html?id=85860) [Kantan na Monitor desu (Novel)](https://www.mangaupdates.com/series.html?id=97029) [Kanta na Enquete desu (Novel)](https://www.mangaupdates.com/series.html?id=83949) [Killer Queen and Deep End (Novel)](https://www.mangaupdates.com/series.html?id=138835) [Mitou Shoukan://Blood-Sign (Novel)](https://www.mangaupdates.com/series.html?id=115675)

A high school student with millions of in-game earnings, Kaname Suou is one of the strongest Dealers in Money (Game) Master, a virtual world where nothing is against the rules. Assisted by his succubus AI partner, Tselika, he seeks the Overtrick-a set of powerful cheat-level weapons that break the laws of physics-and one young girl. What does it take to save somebody in a VR city with gunfights, car chases, and high-stakes stock market gambling? What exactly is in the cards for Kaname and his associates? (Source: Yen Press)

“If a zombie and vampire went all out, which one would win?” Those fateful words began a serious sisterly fight between zombie little sister Ayumi and vampire older sister Erika. The entire city has been recreated using the environment simulator created by the main character and a virtual horror movie begins with the fleeing residents as the targets!

Harland Defense is an old man. He holds the world’s only Risk Rarity Level 8 rating,and even that doesn't fully express the overwhelming power of this one-of-a-kind hitman. He takes on missions from governments and the most influential people in the world,receiving weapons from a girl known as “Mourning Dress” and executing each job precisely and perfectly. “I want to create a world without crime.” The greatest hitman had only one small weakness. That weakness was the peaceful, troubled girls with a story behind them who lived in the apartment building where Harland worked as the apartment Manager. A thrilling yet heartfelt story unfolds in the hitman’s life,filled with both secret missions and charming everyday moments with girls who have stories of their own. (Source: Manga Mirai) A completely new vertical-reading color comic by Kamaitachi Kazuma, the author of ‘A Certain Magical Index’ and ‘A Certain Scientific Railgun’!

Kwenser came to the Alaskan military base to study Objects, the new weapons that have completely revolutionized war as we know it – battles are fought by soldiers controlling Objects far away from harm. However, when he starts to get close to Object pilot Milinda, will he discover the grim truth behind Heavy Objects?

The story of a hero who has fallen into the darkness, Kakine Teitoku is now revealed. Academy City gathers the best of science and technology and promotes development of esper abilities. Among them, Kakine Teitoku, the second-ranked of the seven Level 5 espers with incredible power, encounters a young girl named Yuzuriha Ringo. His objective is to obtain data on the first-ranked Accelerator's thought patterns from Ringo, a test subject in the Dark May Project. However, elements of the Dark Side of Academy City, such as DA, Kuroyoru Umidori, and the Kihara Family, are also targeting the girl's power?!

Toaru Majutsu no Index SP contains several short story arcs not covered from Index and Railgun's main stories, and adds more insights into the Toaru universe. The 4 stories focus on Stiyl Magnus, Mark Space, Kamijou Touma, and Uiharu Kazari respectively.

Intellectual Villages are old fashioned rural villages recreated with cutting edge technology. Those villages attract the Japanese monsters known as Youkai. The high school boy Jinnai Shinobu lives in one of those villages and has a Zashiki Warashi living in his house. He tends to run across Youkai with unnerving frequency and this often leads to trouble for him. (Source: Baka-Tsuki)

Toaru Kagaku no Railgun: Arts and Sciences City SS is a short story in Arts and Sciences City that takes place in the time period between September 3rd to 10th. Academy City has a exchange program with the rest of the world that allows some students to travel for this week to other places, and some students are allowed into Academy City during this time. Mikoto, Kuroko, Saten and Uiharu went to the Arts and Sciences City, made on a artificial island off the coast of California for a field trip. The Arts and Sciences City is known as a city that has cutting edge technology (in terms of the standards of the 'Outside' of Academy City - ie it is still far behind that of Academy City's), and is trying to take over Hollywood as the entertainment capital of the world. Stuntsmen and shows occur frequently at this city, and anything out of the ordinary is treated as another show. Due to the climate apart from sleeping everyone wears their swimsuits all the time. (Source: Toaru Majutsu no Index Wiki)

The 4-koma manga follows the adventures of the characters of the world of Toaru Majutsu no Index as they stumble into various situations. *Note: Includes 3 extra chapters.*